Add docker support for temper.py

[neofob]

• Provide metrics from temper USB devices as a web service
• temper.py can be run as a docker container with custom entrypoint

The dockerization effort is sponsored by Greenfly SAU LLC.

cc: @greenmoss

[eode]

Looks good overall. Can you change the default port to 2610, which isn't in the default debian /etc/services? Realistically, all fairly low ports have been used at one point or another, but 2610 will be a bit less common.

Also, it could use a bit of reference in the README.md - perhaps just mention that it can be run as a docker service, with the relevant commands (like you have in the docker.md)?

[neofob]

Will do that! Thanks for the feedback!

[neofob]

@eode @ccwienk : The patch should be good to be merged after new changes.

[eode]

Excellent! Thanks for your contribution.